Home / 18,915.93-28,468.96-14,260.05

Finding the Fourth Proportional to 18,915.93, 28,468.96 and 14,260.05

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Solution

The fourth proportional to 18,915.93, 28,468.96 and 14,260.05 is: 21,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915.93 : 28,468.96 = 14,260.05 : x
  2. Step 2: Convert to fraction form
    18,915.93/28,468.96 = 14,260.05/x
  3. Step 3: Cross multiply
    18,915.93x = 28,468.96 × 14,260.05
  4. Step 4: Simplify right side
    18,915.93x = 405,968,757.40
  5. Step 5: Solve for x
    x = 405,968,757.40/18,915.93
  6. Step 6: Final answer
    x = 21,461.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.